Your body already makes a hormone that tells your skin to tan. Melanotan 2 is a synthetic peptide engineered to mimic that hormone but in a version that's more potent and Melanotan II A Sun Kissed Look, and a Confident You. Melanotan II Erectile Dysfunction: What You Need to Know Viral 'Barbie drug' for tanning can cause brain swelling and even cancer, experts warn Milano Drop Tanning Drops Improve your tan & minimize UV exposure!